Coltan, tantalite and tantalum
Silica Sand
Silica sand, construction, hardwood charcoals, tropical hardwood lumber, ferrous scrap metal
Zinc sheet, chain link fence, roofing tiles, barbwire, binding wire, wire nails, tracks and studs, purlins, fabric mesh/ welding mesh/road mesh, alcohol, hand sanitizer, tracks & studs, drip edge, roofing tiles, zinc sheets, chain link fencing, barb wire, wire, binding wire, fabric mesh, common (wire) nails, welding wire, other roofing accessories ( capping, fascia, gutters, hopper head),trade items, rebar, lumber, doors. ply